basic-integrity: improvements of CLI plugin actions metadata

plugins/basic-integrity/cli.js

@@ -150,10 +150,11 @@ const pluginActions = {
         description: "calculate subresource integrity hashes for provided files",
         arguments: {
             _: {
-                description: "paths to individual pieces of content"
+                name: "file",
+                description: "paths of files to be processed"
             },
             algorithm: {
-                description: "array of SubtleCrypto.digest-compatible algorithm names to use to calculate digests (default: \"SHA-256\")",
+                description: "SubtleCrypto.digest-compatible algorithm names to use to calculate digests (default: \"SHA-256\")",
                 collect: true,
                 string: true,
                 default: "SHA-256"